[sdiy] Sweep through waveforms

[Grant Richter]

El cheapo crossfade scanner.

Not precise, but cheap and simple to build.

http://www.musicsynthesizer.com/Corpse/VCEOM.html

Bargraph chip is dithered to PWM drive optocouplers, so you can blend,
crossfade or switch depending on dither amplitude.

> From: elmacaco <elmacaco at optonline.net>
> Date: Mon, 18 Nov 2002 19:54:07 -0500
> To: patchell <patchell at silcom.com>
> Cc: synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] Sweep through waveforms
> 
> ah!  thanks.  scanner makes sense as a name.  beats quad crossfader ;)
> 
> somewhat what I expected.
> 
> off to study that schem.
> 
> thanks.
> 
> ed
> ----- Original Message -----
> From: "patchell" <patchell at silcom.com>
> To: "elmacaco" <elmacaco at optonline.net>
> Cc: "Dominic Tarr" <dmt10 at waikato.ac.nz>; <synth-diy at dropmix.xs4all.nl>
> Sent: Sunday, November 17, 2002 5:55 PM
> Subject: Re: [sdiy] Sweep through waveforms
> 
> 
>> Or maybe the Don Tillman Interpolating scanner
>> 
>> http://www.till.com/articles/scanner/index.html#Ref SSM-2024
>> 
>> 
>> elmacaco wrote:
>> 
>>> tri-saw-square-narrow pulse.
>>> 
>>> Ok, I guess that could count as three.  It still puzzles me.  I know a
> few
>>> older synths did this too. just curious about how.
>>> 
>>> Ed
>>> ----- Original Message -----
>>> From: "Dominic Tarr" <dmt10 at waikato.ac.nz>
>>> To: <synth-diy at dropmix.xs4all.nl>
>>> Sent: Sunday, November 17, 2002 4:33 PM
>>> Subject: RE: [sdiy] Sweep through waveforms
>>> 
>>>> sorry to clog your mail boxes with stupid questions but which 4
> waveforms
>>> does it sweet through?
>> 
>> --
>> -Jim
>> ------------------------------------------------
>> * Visit:http://www.silcom.com/~patchell/
>> *-----------------------------------------------
>> *I'm sure glad Merry Christmas comes just once a year
>> * -Yogi Yorgensen
>> ------------------------------------------------
>> 
>> 
> 
>